Gear oiling system for multiple cylinder internal combustion engines



July 25, 1933. P. TEEL 1,920,134

GEAR OILING SYSTEM FOR MULTIPLE CYLINDER INTERNAL COMBUSTION ENGINES Filed Dec. 31, 1930 2 Sheets-Sheet l INVENTOR Eric P. Tee! BY M MM ATTORNEY July 25, 1933. E. p TEEL 1,920,134

GEAR OILING SYSTEM FOR MULTIPLE CYLINDER INTERNAL COMBUSTION ENGINES Filed Dec. 31, 1930 2 Sheets-Shet 2 INVENTOR grio P. Tccl ATTORNEY Patented July 25,1 1933 unner STATES PATENT orFlIcE ERIC. 1?. TEEL, OF LANSING, MICHIGAN, ASSIGNOR TO NOVQ ENGINE COMPANY, OF

if LANSING, MICHIGAN GEAR OILING- SYSTEM FOR MULTIPLE CYLINDER INTERNAL COMBUSTION ENGINES Application filed December 31, 1330. serial No. 505,792.

pear from the description to follow. -A preferred embodiment of my inventionis illus trated in the accompanying drawings, in which? i Fig. 1 is a detail elevation View, partly in section, on the irregular line'11 of Fig. 2 through the crank case and crank shaft of a multiple cylinderinternal combustion engine.

Fig- 2 2'.2 of Fig. 1, omitting the connecting rod and bearing to more clearly illustrate the construction.

Fig. 3 is a detail elevational View partly in section showing a variation of the device. u r

Fig. 4 is a detail sectional view on line 4-l of Fig. 3.

The parts will be identified by their numerals of reference which are the same in all the views. I I i 1 is the crank case of an engine. 2 is one of the roller bearings for the crank shaft. is a fragment of the crank shaft showing two of the crank pins 1, 5 connected by the common crank arm 6. 22 is a portion of the connecting rod showing the bearing attached tocrank pin 5. 7 is the detachable pan on tee-bottom of the crank case. 8 is a lubricator gear journaled on pin 9 which I is carried by bracket 10 secured to the bottom flange 11 of the crank case, running partially submerged in Oll, as indlcat-ed.

12 is an intermeshing gear ring meshing with the gear 8 which surrounds the crank arm 6 and is retained by screws 13 engaging retainer washers 14 which clamp the said ring gear 12 securely in place on said crank is a detail sectional View on line arm 6 in alignment 'withan in mesh with the gear 8. The screws are locked against displacement by being transversely perforated and joined together by a wire 15 as shown.

To limit the amount of oil carried by the gear '8, guards 16 are proyided through which the gearruns. These guards are preferably of sheet metal, but can be of any suitable material. These guards are in the nature of scrapers and remove oil from the sidesof the gears so that oil between the teeth of the gear 8 is practically the only oil thrown out by the meshing of the gears 8 and 12. These guards are fastened to the bracket 10 by bolts 17 and have a portion 18 to prevent needless throwingof the oil.

In Figs. 3 and 4: a modification of the device for limiting the amount of oil delivered by gear Sis shown. In this modification plates 19 are placed on each side of the gear 8 to form a bottomless trough through which the gear 8 rotates. These plates 19 extend above the oil level and are fastened between the bracket 10 and the gear 8 in close-proximity 'to the gear 8 so as to limit the amount of oil that can be picked up by gear 8. The guards v19 are braced by fastener 20 at their bottom portion. In Fig. 3 there is also shown a conventional oil gauge 21.

In operatiomas the crank shaft 3 turns over, it drives gear ring 12, which meshes with the gear 8 and causes it to carry oil up from the bottom of the crank case. r The comparatively thick oil is shot out laterally at the intermeshing point of the gears which is opposite the crank pins l and 5, and the. connecting rod bearings 22. The oil is sprayed on the connecting rod where it works into the openings on the sides and ends of the connecting rod bearings to oil the pins. The connecting rods are consequently struck with ets of oil sufiicient to insure their complete and effective lubrication. l

The lubrication is accomplished solely by the squirting of the oil caused by the meshing of the gears 8 and 12. Since the oil level is below the lowest point of" the arc of the crank pin or connecting rod and connecting 7 cifically and also broadly as pointed out in g the appended-claims.

- :1 multiple cylinderengine of a lubricating rod bearing, no oiling is eifectedby'the striking of the connecting rod in the oil,

This makes it possible to limit the amount of oil utilized,

In the structureshown' in, Figs, 1 and 2,

the gear 8revolvesbetweenguards 16 which t are close to the gear and havei-a scraping action, so that the only oil carried bythe gear 8 limited amount of oil.

Using the modification shown in Figs. 3

Havmg thus described my invention,- what I claim as new and desire to secure by Letters Patent is: Y r l g 1. The combination with a crank shaft of spur gear disposed and supported within the crank case and partially submerged in the Oll, and a spur gear ring 'secureditoan intermediate crank; arm? and disposed to mesh with" said lubricating spur gear, the

meshing point beingidisposed in proximity to acrank pin bearing whereby oil will be projected to the saidbearing. V 3

2. The combination with aicrank shaft of a multiple cylinder engine, of a lubricating gear disposed and supported w ithin the crank case andpartially submerged in oil, a gear ring secured to. an intermediate crank arm and disposed to mesh with said lubri eating gear, and guards disposed'to remove excess of oil from the sides of said 'lubrieating gear.

is between its teeth, thus assuring a.

3. The combination with a crank shaft of a multiple cylinder engine, of a lubricating gear disposed and supported within the crankcase and partially submerged in oil, a gear ring secured to anintermediate crank arm and disposed to mesh with said lubricatinggear, the meshing point being disposed in proximity to the crank pins and means forlimiting the amount of oil picked up by said lubricating gear.

4. The combination with a crank shaft of a multiple cylinder engine, of a lubricating gear disposed and supported within the crank case and partially-submerged in oil, a gear ring secured to anjintermediate crank arm and disposed tomesh with said lubricating gear, the meshing point being disposed in proximity to the crank pins and means for limiting the amount of oil picked up by said lubricating gear.

5. The combination with a crank shaft of a multiple cylinder engine, of a lubricating spur gear disposed and supported within the crank case and partially submerged in -oil, a spur gear ring secured to an intermediatecrank arm and disposed to mesh with said" lubricating spur gear, the meshing crank pins. u

6. The co'mblnation with a crank shaft for point being disposed in proximity to the a multiple cylinderengine of a lubricating spur gear, brackets therefor secured to the base flange of the crank case, a spur gear ring meshing therewith .and disposed centrally'and surrounding an intermediate armbetween crank pins, the meshing point be ing isposed in proximity to said pins, said spur gear ring being retained in place by clamping screws and washers on opposite sides thereof, and 'meansfor locking the clamp screws in place. l

ERIC. P. TEEL. 

